Adjustable vise.



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sarai-vr f wrLsoN n. cnnieiwnienr, or PHILADELPHIA, rnNNsrLvANIA.

ADJUSTABLE visit.

i Specification of Letters Patent.

Patented Sept. 298, i915..

Application led November 23, 1914. Serial No. 873,468. f

To all whom it may concern.'

Be it known that l, WILSON D. CRAIG VRIGH'J?, a citizen of the United States, residing at Philadelphia, inthe county of Philadelphia and State of Pennsylvania,

have invented certainnew and useful lm-` provements in Adjustable' Vises; and l do hereby declare ythe followingl tovbe afull, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to 'make and use the same, referenceloeing had to the accompanying drawings, `and' .to characters yof .refverence marked. thereon,.which'form a part of this specification.

The present invention has reference, gen erally, to improvements in bench-vises and similar devices, u and the invention relates more particularly, toy a novel construction of adjustable vise which can be easily ani quickly` adjusted orset up to the work prior tothe final clamping operation. y

The invention has for its principalyobject to `provide a ysimple and efficient construe tion of quickly j. adjustable bench-vise and the like, in which a free sliding `movement or adjustment of theinovable .clainpjaw may be obtained `without necessity of operating through the ordinary screw `adjustment common to `vises of the oldstyle, suchy adjustment beingl preliminary to kthe liinal clamping actioncfik the mechanism, `which latter action isfobtainedby meansof a screw adjustment, novelmeans for. lockingthe knut ofsuch screwwadjusting .devices automatically.whenfithe'screw 1s turned to obtain the A Aclamping action.

Other objectsof the not at this time more particularly yenumerated, will be.,clearlynnderstood rfrom the following detailed descriptionof' the present invention. f y

4Vith the various objectsv of the present invention in view, thesame-consists, prima'- rily, in the novel construction ofL quickly adjustable bench `vise, hereinafter -set forth; and, the invention consists, furthermore, in the several novel arrangements and 'combinations tof the various .,parts., thereof, as.

well as lin the `details vof `the Construction thereof, all. of `whih will -be fnlly described inthe following specification, and then finally 4embodied inthe claims which are appended to andj which forman essentialA part pf thisemail-ideati@- ypresent` invention,

clamping` or binding relation to the work, held therein. Fig.' et 1s a cross section takenl on line lf-4 in said Eig. 9.; and Fig. is a similar cross section `taken on line 5-5 in said Fig. 3.

'Similar characters of reference are enr.

ployed in allof the `hereinabove described views to ,indicate corresponding parts.

Referring now to the said drawings, the reference character l indicates the complete quickly vadjustalile bench vise made accord-` ing to the principles of my present invention, the same comprising i member Shaving the jaw 4. Said stationary Lclamp,-member 3 ing in which is slidably arranged the'mov# able stockporti on 6 which carries at its free or outer end the movable clamp-member 7 having the jaw 8.V Said stock-portionV 6 is channeled out on its 'under side to; provide is provided with an.open.

'Fig. B is another similar base-plate 2with which 'is connected the stationary clamp-UV aflongitudinally extending open space 9.

Fixed `upon saidbase-plate 2, by means of.

screws 10,y or any other desirable form yof fastening means, isalongitudinally extending barrel o r guideblock extending therethrough. Slidably arranged to move -back or forth through saidcylindrical opening 12 isa nut-piece 13, the same being provided with internal screwthreads la., e e

j The reference character 15 indicates a rotatablezshaft or stem, the outer end of which is mounted in an opening 16 provided in the endwvall 17 of said stock-portion 6, said opening 16 providing a bearing for said shaft or stein 15. Said shaft or stein y15 .is provided atfits outer extreniitywith an enlarged head 18 which engages said end wall 17 and prevents longitudinal `movement,of

1l, the samefhavf. ging a, longitudinalY cylindrical opening ,12

said shaft or stem relative to said stock-portion and at the same time transmits the longitudinal movement of the former to the latter. A collar 19 fixed on said shaft or stem and against the opposite side of said end wall 17 serves a similar purpose. VSaid head 18 is provided with a transverse perforation or opening 20 in which is arranged Vthe usual form of lever-mernbers 21 by means of which said shaft or stein is rotated when desired. Situated at the inner free back against which is based a coil-spring 27 1 which extends or coils around said shaft or stem and serves to provide a yieldable backing for said cone-member or wedge-piece 24. Formed integrally with and extending rearwardly from said nut-piece 18 are a plurality of expansible arms 28, provided at theiry outerends with gripping portions 29 'novel quickly adjustable bench-vise,

on the under sides of which are tapered portions or surfaces 80 corresponding rto and adapted to be engaged Voperatively by said cone-member or wedge-piece 24.

Having described the construction'of'the its operation is as follows Normally the screwthreaded portion of said shaft or stem is turned back in saidrnut-piece so that saidV Y conameinber or wedge-piecel 24V is removed CIK from engagement with said expansible-arms 28, which consequently are normally positioned out of engagement with the walls of said cylindrical opening 12 of said barrel orV guide-block 11, and therefore said nut-piece 13 Vis free to slide in said cylindrical opening 12. The work 1V is then laid against the jaws t of the stationary clampmember 3, and then the movable clamp-member 7 and its stock-portion 6 is moved forward Vuntil the jaw 8 contacts with the work W,

and during this forward movement the shaft or stem k15 is also moved forward carrying `with' it'the nut-piece 13. The parts have thus been quickly'positioned to adjust the' clamp-members jaws VVVto the work WV, the binding or locking of said jaws in gripping relation to the work W may be effected as follows z-The stem or shaft 15 is rotated to turn said screw-threaded portion thereof in the'nut-piece 13', with the effect of drawing said nut-piece rearward and carrying its expansible-arms 28 in engagement with said cone-member or 'wedgepiece 24. Engage- 'i ment of the former with thelatte-r tends to press outwardly or expand said expansible arms 28, and thereby carriesthe grippingportions 29 Vofthe latter inbinding engagement with the walls of said cylindrical opening 12v thus locking said nut-piece against further movement. Now if a still tighter grip of the jaws 3 andr8 upon the work W is desired, the shaft or stem 15 may be rotated to move the same'forward, since the nut-piece 13 remains stationary, the forwarr movement of the stem or shaft moves forward the stock-'portion 6 and the movable clamp-member 'vwhereby the jaw 8 is forced into tighter gripping relation to the work. This additional movement of the stem or shaft and parts connected therewith, independent of the nut-piece 13 is possible because the cone-.member or wedge-piece 24 is loose on said shaft thus permitting the latter to move through the same, and the backingspring 27 is furtherV compressed by this additional forward movement ofV the stein or shaft, and its pressure upon the' cone-meinber or wedge-piece 2e is suflicient to maintain the latter in proper expanding relation to said expansible arins28 of said nut-piece 13. It will thus be seen that lnot konly are the jaws and 8 locked inV gripping relation to .the work, but also a variable degree of gripping pressure of the same' upon thelwork may be easily Yand quickly obtained by an additional turn or so of thestem or'shaft 15 after the nut-piece is locked to hold the stem or shaft l5 and the parts connected therewith yagainst release. To releasethe grip of the' jaws 3 and 8, the operations above described are reversed, las will be f clearly understood.

l1am aware that someichangesmay be made-in the various arrangements and combinatioifis of the various devices and parts, as well as in the details of the construction thereof, without departing from thescope of my present invention. Hence, I do not liinitv my invention to the exact arrangements and combinations of the said parts as described inthe foregoing specification, nor do I confine myself to the exact details lof the conin the accompanying drawings.

I claim :h

1. Anadjustable vise comprising a stationary clamp-member and a movable clampmember slidably related thereto, said movstruction of the details ofthe saine as shown able clamp-member having a rotatable shaftV connected therewith, an lexternally screw threadedportion at the inner free end of said shaft, a guide block having a longitudinal cylindrical opening into 'which said shaft extends, a nut-piece slidably arranged in said cylindrical opening, 'said screw-thread ed portion of said shaft entering'said nut'- viio piece, expansible arms extending rearwardly .n

from said nut-piece, and means carriedby Vsaid shaft yfor expanding rsaid expansible armsto move the same into bindingrelation y to the Walls 'of said cylindrical Aiopeninfg, to

Vlock said nut-piece in fixed relation to said connected therewith, an externally screw-V threaded portion at the inner free end of saidfshaft, a guide block having a longitudi- ,l f nal Cylindrical opening into Which saidshaft extends, a nut-piece slidably arranged in said cylindrical opening, said vscrew-threadedportion `of said shafty entering said,l nutpieee, expansible arms extending rearwardly from said nut-piece, and means carried by said shaft for expanding `said expansible arms to move the same-into binding k1relation to the walls of said cylindrical openingfto y lock said nut-piece in fixed relation to said guide-block, said means comprisingv a Wedgepieee mounted on said shaft, said Wedgepieoe being broughtinto operation by turning said shaft. i

3. 2in adjustable vise Comprising a stationary clamp-member and a movable clamp-l member slidably related thereto, said movable clamp-member having a rotatable shaft connected therewith, an externally screwthreaded portion at the inner freek end of said shaft, a guide block having a longitudinal cylindrical opening into which said shaft extends, a nut-piece slidably arranged in said cylindrical opening', said screw-threaded pertion of said shaft entering said nutpiece, expansible arms extending rearwardly from said nut-piece, and means carried by said shaft for expanding said expansible arms to more the same into binding relation to the Walls of said cylindrical opening to loci: said nut-piecein lixed relation to said guide-block, said means comprising a Wedgepieee loosely mounted on said shaft, and a coil-spring adapted to yieldablyT back said Wedge-piece, said Wedge-piece being brought into operation by turning said shaft.

il. An adjustable vise comprising a stationary clamp-member, a movable clampinember having a stock-portion slidably related to said stationary Clamp-member, a guide-block having a longitudinal Cylindrioal opening arranged in fixed relation to said stationary clamp-member, said stookportion of said movable Clamp-member having an open Channel in its under side adapted te straddle said guide-block, a shaft rotatably connected With said movable Clampmember and its stock-portion, an-externally screw-threaded portion at theinner free end of said shaft, a Vnut-piece having'internal screw-threads slidably arranged in said eylindrical opening, said screw-threaded portion @Maid/,Shaft engaging, the threads 0f said I lnut-piene, expansible arms extending ,f rearwardly 7fro,in-saidfL nut-piece, and y,means ,carried'bysaid shaftffor expanding `said ex- `r`pa'nsible armstomove the same into binding y Irelati'crn1 to the Wallsof said oylindrioalopen- 's ing tolloeksaid nut-pieoein fixed relationto said .guide-block, .said "means being brought into operation ,by turning said shaft.

5. ,An adjustable vise comprising a ,staytionary` elamp-'member a movable clampmember, having a stock-portion slidably related to Y said, ystationary clamp-membem a guide-block having aV longitudinal cylindrieal opening -arranged fin, fixed y relation to ,saiddstationary clamp-member, `said stockportion of said movable clamp-memberhaving anlopen `channel in 'its under side adapteclstdstraddle said -guide-bloclga shaft rotatably Connected Withsaid movable Clamp-V` member and itsstook-portion, an externally f screw-'threaded portion at the inner free end lof, said shaft, a nut-piece having internal `screw-threads slidably arranged in said oylindreal opening said `screw-threadedy por-g krtion 'of said, shaft engaging the threadsof ,l said" nut-piece, expansible arms extending yrearwardly from said nut-piece, and means -arred by Said Shaftfol ,XPMiflngiSaid SX pansble'y arms to move the same into binding relation to the Walls of said cylindrical opening to look said nut-piece in fixed relation to said guide-block, said means comprising a Wedge-piece mounted on said shaft, saidy Wedge-piece being brought into operation by turning said shaft. Y

G. An adjustable vise comprising a stationary clamp-member, a movable clampinember having a stock-portion slidably related to said stationary clamp-member, a guide-block having a longitudinal cylindrical opening arranged in fixed relation to said stationary'olamp-member, said stockportion of said movable clamp-member having an open channel in its under side adapted to straddle said guide-block, a shaft rotatablv connected vvithl said movable Clampmember and its stock-portion, an externally screw-threaded portion at the inner free end of said shaft, a nut-piece. having internal screw-threads slidably arranged in said cylindrical opening, said screw-threaded portion ofl said shaft engaging the threads of said nut-piece, expansible arms extending rearwardly from said nut-piece, and means carried by said shaft for expanding said expansible arms to move the same into binding relation to the Walls of said cylindrical opening to look said nut-piece in fixed relation to said guide-block, said means comprising a Wedge-piece loosely mounted on said shaft, and a coil-spring adapted to yieldably back said wedge-piece, said Wedge-piece being brought into operation by turning said shaft.

yse

CCI

tionary Y clamp-member associatedV therevvltlnra slid- 7. An adjustable visel comprising a staclamp-member and a movable able nut-piece related to said stationary clamp-member, a rotatable shaft related to said movable clamp-member, said shaft being Ain" threaded engagement with said'nut-pieoe,

expansible arms, connected with nut-piece, and means oarriedby said shaft for eX- panding said ieXpansi'ble Yarms to frictionally bind said nut-piecek in non-moving re- Y itienarv said movable Clamp-member, said shaft Y being in threaded engagement With said nut- 'pieoe,' eXpansible arms connected With said nut-piece, and means Carried by said shaft for expanding said expansible arms to frietionally bind said nut-piece in non-moving relation to said stationary slamp-mem-y l Aberasaid'meanscomprising a Wedge-piece mountedv on said shaft, saidv Wedge-pieee being brought into operation by turning said shaft. Y y Y 9.15m vadjustable vise comprising astationary clamp-member anda clamp-member associated therewith,l a slidablevnutfpieoe related to said stationary clamp-member, a rotatable shaftrelated'to said movable clam a-member said shaft beine- 7 D f in threaded engagement With-said nut-piece;

eXpan'sible armsY connected with said nutp1ece,and means carried by said shaft for expanding said eXnansible arms to friction- Vally bind said nut-piece in non-moving relation to said stationary Clamp-member, said means comprising aV Wedge-piece loosely mounted on said shaft, and a VCoil-spring adapted to yieldably back said Wedge-piece,

movable said wedge-piece being brought into opern ation by turning said shaft. Y

In testimony that I claim the invention set forth vabove I have hereunto set my hand.

Winsen D. CRAIG WRIGHT,

Vitnesses: l

LQRENZO J. RILEY, HENRY A. TUMELTY.

Copies of this patient may be UJlained for five cents each, Vby addressing the Commissioner of Patents,

Washington, D. C. 

